From patchwork Thu Oct 29 13:38:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Armbruster X-Patchwork-Id: 1390113 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=RDkpvHvv; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4CMRQG3g2Bz9sRk for ; Fri, 30 Oct 2020 00:40:06 +1100 (AEDT) Received: from localhost ([::1]:36752 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kY89s-0005xJ-HI for incoming@patchwork.ozlabs.org; Thu, 29 Oct 2020 09:40:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41188) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kY88g-0005ss-Ui for qemu-devel@nongnu.org; Thu, 29 Oct 2020 09:38:50 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:36652) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kY88e-0008JY-Gw for qemu-devel@nongnu.org; Thu, 29 Oct 2020 09:38:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1603978727; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=2CcTRrLuVHym08uC7ic0BIJQGlah2N3jZECNEJQTcJg=; b=RDkpvHvvOcaUtKR9NvJUCru6G6f+MBjEvn3oFyGsKXJbolve7Bsp/AZ7CxNRszarTXb4z4 lb1lDGN/MkZrsxDTsgZCNQemuSHhvlVY2Q566LRFzTE6jNJIqTcDPE+3HwZ12QlkC4981p Cf9g7uhskn04d6ljSRhyHuJ50DBncD4= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-29-xJIP-wbdObaVZBS5_0qoJg-1; Thu, 29 Oct 2020 09:38:43 -0400 X-MC-Unique: xJIP-wbdObaVZBS5_0qoJg-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id B06641018F7A; Thu, 29 Oct 2020 13:38:42 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-112-182.ams2.redhat.com [10.36.112.182]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 740CB19930; Thu, 29 Oct 2020 13:38:42 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id AF99511329BE; Thu, 29 Oct 2020 14:38:33 +0100 (CET) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PATCH 08/11] sockets: Fix socket_sockaddr_to_address_unix() for abstract sockets Date: Thu, 29 Oct 2020 14:38:30 +0100 Message-Id: <20201029133833.3450220-9-armbru@redhat.com> In-Reply-To: <20201029133833.3450220-1-armbru@redhat.com> References: <20201029133833.3450220-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/29 00:47:54 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, berrange@redhat.com, zxq_yx_007@163.com, kraxel@redhat.com, pbonzini@redhat.com, marcandre.lureau@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Commit 776b97d360 "qemu-sockets: add abstract UNIX domain socket support" neglected to update socket_sockaddr_to_address_unix(). The function returns a non-abstract socket address for abstract sockets (wrong) with a null @path (also wrong; a non-optional QAPI str member must never be null). The null @path is due to confused code going back all the way to commit 17c55decec "sockets: add helpers for creating SocketAddress from a socket". Add the required special case, and simplify the confused code. Fixes: 776b97d3605ed0fc94443048fdf988c7725e38a9 Signed-off-by: Markus Armbruster --- util/qemu-sockets.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c index c802d5aa0a..801c5e3957 100644 --- a/util/qemu-sockets.c +++ b/util/qemu-sockets.c @@ -1264,10 +1264,20 @@ socket_sockaddr_to_address_unix(struct sockaddr_storage *sa, addr = g_new0(SocketAddress, 1); addr->type = SOCKET_ADDRESS_TYPE_UNIX; - if (su->sun_path[0]) { - addr->u.q_unix.path = g_strndup(su->sun_path, sizeof(su->sun_path)); +#ifdef CONFIG_LINUX + if (!su->sun_path[0]) { + /* Linux abstract socket */ + addr->u.q_unix.path = g_strndup(su->sun_path + 1, + sizeof(su->sun_path) - 1); + addr->u.q_unix.has_abstract = true; + addr->u.q_unix.abstract = true; + addr->u.q_unix.has_tight = true; + addr->u.q_unix.tight = !su->sun_path[sizeof(su->sun_path) - 1]; + return addr; } +#endif + addr->u.q_unix.path = g_strdup(su->sun_path); return addr; } #endif /* WIN32 */